This roof drain assembly features a stainless steel clamping ring installed per manufacturer specifications over non-reinforced flashing and reinforced membrane layers. A water stop is integrated at the vertical penetration, with reinforced membrane extending horizontally across the roof deck. The substrate consists of rigid insulation over DensGlass sheathing, secured with fasteners and fastening plates installed per manufacturer requirements. Sealant is applied at the membrane termination edges. Dimensional tolerances include a one-inch minimum and twelve-inch maximum spacing configuration.
1 1/2" TO 2" 12" MAX. 1" MIN. (APPX.) 1/2" MIN. 1 1/2" MIN. INSTALL PER MANUFACTURER REINFORCED MEMBRANE WATER STOP STAINLESS STEEL CLAMPING RING INSTALL PER MANUFACTURER FASTENER AND FASTENING PLATE INSTALL PER MANUFACTURER NON-REINFORCED FLASHING REINFORCED MEMBRANE SEALANT RIGID INSULATION DENS GLASS
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